Last edited by Maujora
Thursday, May 14, 2020 | History

2 edition of Redrying fire-retardant-treated structural plywood found in the catalog.

Redrying fire-retardant-treated structural plywood

Phil Woo Lee

Redrying fire-retardant-treated structural plywood

by Phil Woo Lee

  • 194 Want to read
  • 9 Currently reading

Published by Forest Products Laboratory, Forest Service, U.S. Dept. of Agriculture in Madison, WI .
Written in English

    Subjects:
  • Plywood -- Drying.

  • Edition Notes

    StatementPhil Woo Lee and E.L. Schaffer.
    ContributionsSchaffer, Erwin L., Forest Products Laboratory (U.S.)
    The Physical Object
    Paginationp. [178]-199 :
    Number of Pages199
    ID Numbers
    Open LibraryOL15310853M

    ® BRAND FIRE RETARDANT TREATED WOOD LIMITED WARRANTY AGREEMENT * 1. Mold growth on preserved wood products or any damage resulting from the existence of mold. 2. Delamination of plywood or other laminated wood products. 3. Corrosion of fasteners, hardware or any other material(s) (including without limitation any material. Fire Retardant Plywood, Fire Retardant Lumber, Fire Retardant Wood, Fire Retardant coatings for fabric, paper, wood shingles and siding, thatch and tiki hut thatching, plastic pipe, Christmas trees, wood, plywood, lumber, timber. Fire Retardant treated lumber, plywood, timber and timbers are vacumm pressure impregnated with Flame Safe fire retardant to comply with the ASTM E84 standard and.

    The people who developed FRX® wood for interior applications and the people who developed FRX® shakes and shingles now offer FRX® wood, fire retardant treated wood that retains its fire retardancy in outdoor use. FRX® wood is pressure treated lumber and plywood that is chemically treated to reduce the spread of flames and provide tested fire protection for applications directly exposed to. Wood structural panels. The effect of treatment and the method of redrying after treatment, and exposure to high temperatures and high humidities on the flexure properties of fire-retardant-treated softwood plywood shall be determined in accordance with ASTM D

    Grades Standard and select grades available Sizes 4’ x 8’ Thickness 1/2", 5/8", 3/4" Note Specifications may change, some products may be special : Standard and select grades available. Classified Interior Type A/KDAT AWPA Recognition of Dricon® FRT Wood Dricon® FR chemicals and Dricon® FRT wood are acceptable under AWPA's P & U FR chemical meets the formulation listed as "FR-1" in standard P17 for fire retardant formulations. Dricon FR chemical and Dricon FRT wood are also recognized as an effective preservative system for above-ground, weather .


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Redrying fire-retardant-treated structural plywood by Phil Woo Lee Download PDF EPUB FB2

OCLC Number: Notes: Caption title. Reprinted from Wood and fiber, Julyv. 14(3). Description: pages [] illustrations ; 28 cm. By P.W. Lee and E.L. Schaffer, Published on 01/01/ Recommended Citation.

Lee, P.W. and Schaffer, E.L., "Redrying fire-retardant-treated structural plywood" ().Author: P.W. Lee, E.L. Schaffer. Fire-Retardant-Treated Wood Prior tothe APA recommended reductions of one-sixth and one-tenth in plywood design values for strength and stiffness, respectively, when FRT ply-wood was used.

The APA currently recommends that design values for FRT plywood be obtained from individual FRT plywood Size: KB. Wholesale Fire Retardant Lumber & Plywood Suppliers. Pyro-Guard is pressure-impregnated, third-generation, interior fire-retardant treated lumber and plywood for enclosed structural applications.

Pyro-Guard can be used with confidence in all recommended structural applications, including plywood roof sheathing and roof trusses.

stability for fire-retardant-treated material may be closer to to °F (54 to 66°C). These findings will be reflected in future editions of references such as the Wood Handbook.

While fire-retardant-treated lumber and plywood have been used successfully for nearly 50 years in structures exposed to.

Fire retardant treated FRT plywood, while it is still a combustible material, has been chemically treated to provide a lower flame-spread rate than un-treated plywood used in building construction.

Our second photo of a contained spread of fire (left) illustrates the object of using this fire resistant roof sheathing. humidity to which the ˚re-retardant-treated wood will be subjected, the type of treatment and redrying procedures. Wood structural panels.˜The e˝ect of treatment and the method of redrying after treatment, and expo-sure to high temperatures and high humidities on the ˜exure properties of ˚re-retardant-treated softwood plywoodFile Size: 4MB.

6 Figure 1: Checking parallel to grain. PROBLEMS WITH FIRE­RETARDANT­TREATED (FRT) WOOD BY DEREKPE, RRO E X T E N D B E L O W T H E R O O F D E C K T.

he degradation of wood strength properties related to theFile Size: KB. 15/32 ®inch thick PYRO -GUARD Fire-Retardant-Treated (FRT) plywood may be used as a thermal barrier to protect foam plastic insulation as described in. Section of theand IBC, Section R of theand IRC. Use of PYRO-GUARD ® Fire-Retardant-Treated (FRT) lumber and plywood in nonvented roofing -File Size: KB.

Fire Retardant Treated Wood The use of pressure treated FRTW is required by building codes in many public facilities in order to help contain the spread of fire. For more than 30 years, builders and homeowners have chosen Biewer Lumber’s Fire Retardant Treated Wood for its proven effectiveness in slowing the spread of flames and reducing.

Interior fire retardant plywood can be used for roof as well as wall structures. The product is decay and termite resistant. This fire retardant plywood is classified as a Type A fire retardant product. Treated with fire retardant for interior use only. Can be used in commercial and residential projects.

Variety of uses. Year limited warranty. The structural durability of FirePRO brand fire retardant treated lumber and plywood has been independently tested according to the latest and most stringent versions of ASTM strength durability standards. When tested according to ASTM Standards D (lum-ber) and D (plywood), FirePRO brand fire retardant treated wood showed no signs File Size: KB.

FirePro brand fire retardant treated plywood is pressure impregnated with FirePro Interior Type A High Temperature (HT) fire retardant chemicals. Typically permitted for interior, above ground applications such as: roof systems, flooring and other interior applications.

Offers protection from termites and decay fungi. Low smoke development values. LUMBER AND PLYWOOD, FIRE-RETARDANT TREATED This amendment forms a part of MIL-LE, dated 28 Juneand is approved for use by all Departments and Agencies of the Department of Defense.

PAGE 5 *1st sentence: Delete and substitute: "This category applies only to Type II material and is required for staging (Scaffold) plankFile Size: KB. In the United States, problems with fire-retardant-treated plywood roof sheathing and roof-truss lumber have occurred in the field; thermal degradation has occurred in as few as 2 to 5 years after.

Specifier Note: D-Blaze Fire Retardant Treated (FRT) lumber and plywood is highly effective against the spread of flame and smoke.

Its built-in UL FRS classified properties have a flamespread and smoke rating of 25 or less. D-Blaze FRT materials are independently tested.

They qualify with all major building codes and insurance rating Size: KB. A Year Limited Warranty against structural failure due to heat or humidity is available. See FirePRO® year limited warranty for details.

FirePRO® brand fire retardant treated wood is typically specified for use in areas not exposed to the weather or wetting and where the adopted building code permits the use of wood or fire retardant. Find High quality fire treated products from Pyro-Guard, Exterior Fire-X and D-BLAZE at available for Southeast and Mid Atlantic USA.

fire retardant treated wood products, should have an Evaluation Service Report indicating compliance with the Acceptance Criteria For Fire-Retardant-Treated-Wood, AC The Acceptance Criteria establishes the performance requirements for fire-retardant-treated-wood, including lumber and plywood, to be recognized in an ICC Evaluation.

be fire-retardant treated. Experience shows that both lumber and plywood decking must have a minimum actual thickness of 19 mm and both should be tongue and groove. Plywood decking, if not tongue and groove, must also have unsupported jo ints solidly backed with FRTW or plywood.

Figure 2 shows that the construction of roof assembliesFile Size: KB. Call or click "Contact Us" at the bottom of the page interior fire-retardant plywood for enclosed structural applications. Related Products 1/2"x4x8 CD SYP PLYWOOD 4-ply PRICE: $ Plywood, OSB, Sheet Goods > Plywood Sheathing, Good One Side & Treated.“Standard Practice for Calculating Bending Strength Design Adjustment Factors for Fire-Retardant-Treated Plywood Roof Sheathing” ASTM D “Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber” ASTM DAfter redrying, the veneers were hot pressed into fire retardant treated plywood in a conventional way.

Fire performance was evaluated by cone calorimeter test.